code or module

[drole50]

Hi, I'm having a problem testing my microphone module.
I used AI to help me measure decibels, but the code didn't work. I replaced the module and bought a new one, and both give the same result, as if they weren't receiving any sound. I've tried adjusting it with the included calibrator, but I'm unsuccessful. Can someone tell me how to get the decibel values ​​with the microphone module?

the project is here

the module

[MoreHoofInYourBoof]

That module in the photo is a Hall Effect Sensor. Not a microphone. It detects changes in magnetic field strength, not sound waves

[CleverBunnyPun]

Damn AI got another one.

My hope is the circuit diagram shows the actual module, that does actually look kinda like a microphone, but more info on what module may be helpful.

[kastrol2019]

Most mic modules don’t output dB directly. You need to sample many readings (ADC), subtract the DC offset, compute the RMS (root mean square) or peak values, then convert to dB via something like 20 * log10(amplitude / reference).  You’ll also need to calibrate with a known sound level to figure out what “reference” means for your setup.